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A-Tech 64GB (2x32GB) 2Rx8 PC5-38400E DDR5 4800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (2x32GB) 2Rx8 PC5-38400E DDR5 4800 MHz ECC UDIMM Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL40
  • Voltage: 1.10V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT32G2D5D4800ED8EC4N11V
  •  
  • $1,559.98 
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Supermicro Certified MEM-DR432LC-ER26 | Micron MTA36ASF4G72PZ-2G6E1 | 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
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Supermicro Certified MEM-DR432LC-ER26 | Micron MTA36ASF4G72PZ-2G6E1 | 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx4
  • Model #: MEM-DR432LC-ER26 MTA36ASF4G72PZ-2G6E1
  • $165.01
  •  
  • $156.76 
Micron 32GB Server Workstation Memory - DDR4 3200MHz - ECC Parity - Registered - 2Rx8 - CL22 - 1.2V
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Crucial
Micron 32GB Server Workstation Memory - DDR4 3200MHz - ECC Parity - Registered - 2Rx8 - CL22 - 1.2V
  • CAS Latency: CL22
  • Timing: 22-22-22
  • Voltage: 1.20V
  • Part Number: MTA18ASF4G72PDZ-3G2R
  • Model #: MTA18ASF4G72PDZ-3G2R
A-Tech 32GB (4x8GB) 1Rx4 PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit
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A-Tech 32GB (4x8GB) 1Rx4 PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Single Rank x4 Server & Workstation RAM Memory Upgrade Kit

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  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: AT8G4D4D2666RS4N12V
  •  
  • $219.96 
HYNIX HMT325U7BFR8C-H9 PC3-10600E DDR3 1333 2GB ECC 1RX8
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SK hynix
HYNIX HMT325U7BFR8C-H9 PC3-10600E DDR3 1333 2GB ECC 1RX8
  • Type: 240-Pin DDR3 SDRAM
  • Model #: HMT325U7BFR8C
  •  
  • $22.99 
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16GB RAM Replacement for HP 733482-001 | DDR3 1866MHz PC3-14900 ECC RDIMM 2Rx4 Server Memory
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16GB RAM Replacement for HP 733482-001 | DDR3 1866MHz PC3-14900 ECC RDIMM 2Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL13
  • Voltage: 1.50V
  • Rank: 2Rx4
  • Model #: NE-PNR-1697
  •  
  • $39.99 
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R750 Rack Server
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NEMIX RAM 16GB (1X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Dell PowerEdge R750 Rack Server
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-628K1
  • Model #: MR25600-628K1-PE750R
  •  
  • $158.88 
16GB RAM Replacement for Hynix HMCG78AGBEA, HMCG78AGBEA081N | DDR5 5600MHz PC5-44800 ECC UDIMM 1Rx8 (EC4) Server Memory
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16GB RAM Replacement for Hynix HMCG78AGBEA, HMCG78AGBEA081N | DDR5 5600MHz PC5-44800 ECC UDIMM 1Rx8 (EC4) Server Memory
  • Brand: A-Tech
  • Series: Compatible Replacement for Hynix HMCG78AGBEA HMCG78AGBEA081N
  • Capacity: 16GB
  • Speed: DDR5 5600 (PC5 44800)
  • Model #: NE-PNR-2377
  •  
  • $439.99 
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Hynix 8gb Ddr2 Pc2-5300 667mhz Ecc Registered Cl5 1.8v Dual Rank 240p
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  •  
  • $41.30 
  • Free Shipping
Kingston 64GB (4 x 16GB) ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KVR21R15D4K4/64
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Kingston 64GB (4 x 16GB) ECC Registered DDR4 2133 (PC4 17000) Server Memory Model KVR21R15D4K4/64
  • CAS Latency: CL15
  • Multi-channel Kit: Quad Channel Kit
  • Type: 288-Pin DDR4 SDRAM
  • Model #: KVR21R15D4K4/64
KINGSTON KSM26ED8/16ME Kingston KSM26ED8/16ME DDR4-2666 16GB/ 2Gx72 ECC CL19 Server Memory
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  • $229.00 
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V-COLOR DDR5 256GB (64GBx4) 6400MT/s CL60 ECC R-DIMM 1.1V Memory Ram for AMD TRX50/WRX90 Workstations with Hynix IC (TRA564G64D460Q)
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V-color
V-COLOR DDR5 256GB (64GBx4) 6400MT/s CL60 ECC R-DIMM 1.1V Memory Ram for AMD TRX50/WRX90 Workstations with Hynix IC (TRA564G64D460Q)
  • Brand: V-Color
  • Series: ECC RDIMM
  • Capacity: 256GB (4 x 64GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: TRA564G64D460Q
  •  
  • $8,719.99 
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Micron MT16KTF1G64HZ-1G6E2
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Micron MT16KTF1G64HZ-1G6E2
  • Brand: Micron
  • Capacity: 8GB
  • Speed: DDR3 1600 (PC3 12800)
  • ECC: NON
  • Model #: MT16KTF1G64HZ-1G6E2
  •  
  • $33.25 
A-Tech 64GB (2x32GB) 4Rx4 PC3L-10600R DDR3 / DDR3L 1333 MHz ECC RDIMM 1.35V Registered DIMM 240-Pin Quad Rank x4 Low Voltage Server & Workstation RAM Memory Upgrade Kit
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A-Tech 64GB (2x32GB) 4Rx4 PC3L-10600R DDR3 / DDR3L 1333 MHz ECC RDIMM 1.35V Registered DIMM 240-Pin Quad Rank x4 Low Voltage Server & Workstation RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL9
  • Voltage: 1.35V
  • Multi-channel Kit: Dual Channel Kit
  • Model #: AT32G2D3D1333RQ4N135V
  •  
  • $129.98 
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Supermicro Certified MEM-DR416L-CL01-ER29 Micron 16GB DDR4-2933 ECC RDIMM
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Supermicro Certified MEM-DR416L-CL01-ER29 Micron 16GB DDR4-2933 ECC RDIMM
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: MEM-DR416L-CL01-ER29
  • $206.99
  •  
  • $165.59 
  • Save: 20%
NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC UDIMM Compatible with Hynix HMA82GU7CJR8N-UH Unbuffered Memory
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NEMIX RAM 16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V 288-PIN ECC UDIMM Compatible with Hynix HMA82GU7CJR8N-UH Unbuffered Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Part Number: ME19200-628K1
  • Model #: ME19200-628K01-2494
  •  
  • $169.99 
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL07-ER26 Registered Server Memory
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NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Supermicro MEM-DR416L-CL07-ER26 Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Part Number: MR21300-628K1
  • Model #: MR21300-628K01-410
  •  
  • $134.95 
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Kingston 8GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model KSM26RS8/8MEI
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Kingston 8GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model KSM26RS8/8MEI
  • CAS Latency: CL19
  • Timing: 19-19-19
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: KSM26RS8/8MEI
  •  
  • $89.99 
  • Free Shipping
OWC 256GB (8x32GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
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OWC 256GB (8x32GB) DDR4 3200MHz PC4-25600 CL22 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL22
  • Voltage: 1.2V
  • Multi-channel Kit: Dual Channel Kit
  • Part Number: 3R2D42R4256K
  • Model #: OWC3R2D42R4256K
  •  
  • $2,626.72 
A-Tech 512GB (8x64GB) 4Rx4 PC4-21300L DDR4 2666 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 4DRx4 Quad Rank x4 Server RAM Memory Upgrade Kit
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A-Tech 512GB (8x64GB) 4Rx4 PC4-21300L DDR4 2666 MHz ECC LRDIMM Load Reduced DIMM 288-Pin 4DRx4 Quad Rank x4 Server RAM Memory Upgrade Kit
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 4Rx4 (4DRx4)
  • Model #: AT64G8D4D2666LQ4N12V
  •  
  • $2,395.60 
MTA18ASF2G72PDZ-2G3D1 Micron 16GB PC4-19200 DDR4-2400MHz ECC Registered CL17 288-Pin DIMM 1.2V Dual Rank Memory Module
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MTA18ASF2G72PDZ-2G3D1 Micron 16GB PC4-19200 DDR4-2400MHz ECC Registered CL17 288-Pin DIMM 1.2V Dual Rank Memory Module
  • Chipset: Micron Chipset
  • CAS Latency: CL17
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: MTA18ASF2G72PDZ-2G3D
NEMIX RAM 16GB (1X16GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA42GR7AFR4N-TF Registered Server Memory
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NEMIX RAM 16GB (1X16GB) DDR4 2133MHZ PC4-17000 2Rx4 1.2V 288-PIN ECC RDIMM Compatible with Hynix HMA42GR7AFR4N-TF Registered Server Memory
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL15
  • Voltage: 1.20V
  • Part Number: MR17000-624K1
  • Model #: MR17000-624K01-2456
  •  
  • $99.99 
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Kingston Premier Series 64GB ECC Registered DDR4 3200 (PC4 25600) Server Memory Model KSM32RD4/64HAR
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Kingston Premier Series 64GB ECC Registered DDR4 3200 (PC4 25600) Server Memory Model KSM32RD4/64HAR
  • CAS Latency: CL22
  • Timing: 22-22-22
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Model #: KSM32RD4/64HAR
  •  
  • $899.00 
  • Free Shipping
Team T-Create Master 192GB (8 x 24GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model MASTER DDR5 WORKSTATION MEMORY BLACK - CTCMD5192G6400HC32AOC01
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Team Group
Team T-Create Master 192GB (8 x 24GB) ECC Registered DDR5 6400 (PC5 51200) Server Memory Model MASTER DDR5 WORKSTATION MEMORY BLACK - CTCMD5192G6400HC32AOC01
  • Brand: Team
  • Series: T-Create Master
  • Capacity: 192GB (8 x 24GB)
  • Speed: DDR5 6400 (PC5 51200)
  • Model #: CTCMD5192G6400HC32AOC01
  •  
  • $4,849.99 
  • Free Shipping
Micron MTA18ASF2G72PDZ-2G6D1
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Micron MTA18ASF2G72PDZ-2G6D1
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: MTA18ASF2G72PDZ-2G6D
NEMIX RAM 256GB (16X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R7515
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NEMIX RAM 256GB (16X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT Compatible with Dell PowerEdge R7515
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-628K16
  • Model #: MR25600-628K16-DPER7515
  • $2,499.89
  •  
  • $2,482.49 
Sk Hynix HMA42GR7AFR4N-UH 16G 2RX4 PC4-2400T REGECC For Server
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16GB RAM Replacement for Kingston HP672612-081-HYA, KVR16R11D4/16HA, KVR16R11D4/16HB, KVR16R11D4/16I, KVR16R11D4K3/48, SL16D3L16R11D4KF | DDR3 1600MHz PC3-12800 ECC RDIMM 2Rx4 Server Memory
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  • $39.99 
  • Free Shipping
NEMIX RAM 128GB (2X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
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NEMIX RAM 128GB (2X64GB) DDR4 3200MHZ PC4-25600 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory KIT
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL22
  • Voltage: 1.20V
  • Part Number: MR25600-924K2
  • Model #: MR25600-924K2-G
  •  
  • $1,076.49 
NEMIX RAM 8GB (1X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC Unbuffered UDIMM Memory Compatible with Hynix HMT41GU7AFR8A-PB
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NEMIX RAM 8GB (1X8GB) DDR3 1600MHZ PC3-12800 2Rx8 1.35V 240-PIN ECC Unbuffered UDIMM Memory Compatible with Hynix HMT41GU7AFR8A-PB
  • Chipset: Major OEM Samsung, Micron, Hynix
  • CAS Latency: CL11
  • Voltage: 1.35V
  • Part Number: ME12800-828LK1
  • Model #: ME12800-828LK01-2658
  •  
  • $28.99 
  • Free Shipping
PWR5T - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
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PWR5T - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
  • Chipset: Major Brand Chipset
  • Voltage: 1.20V
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: PWR5T
  •  
  • $159.45 
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Kingston ValueRAM 2GB ECC Registered DDR2 400 (PC2 3200) Server Memory Model KVR400D2S4R3/2G
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Kingston ValueRAM 2GB ECC Registered DDR2 400 (PC2 3200) Server Memory Model KVR400D2S4R3/2G
  • CAS Latency: CL3
  • Voltage: 1.80V
  • Type: 240-Pin DDR2 SDRAM
  • Parts: Lifetime limited
  • Model #: KVR400D2S4R3/2G
  •  
  • $38.99 
  • Free Shipping

Choosing the right server memory can boost the performance and reliability of your data center by checking for data errors and reducing electrical loads. There are different types of server RAM to prevent crashes, correct inaccuracies in your data or allow for faster operation.

ECC Memory Uses Algorithms to Constantly Check Data for Errors

ECC server memory can prevent system failure and data corruption, which is particularly important in data centers and business environments, such as healthcare and finance. ECC memory adds a ""parity bit"" to each binary code to detect errors. When writing data, this type of system-specific memory creates and stores an ECC code. When it reads data, ECC memory creates a new ECC code and compares it to the one it had previously stored. If there are errors, the memory decrypts the corrupted data and corrects it immediately. ECC computer memory uses algorithms to continually check for single-bit errors as the server processes data. This type of server memory can be slower than others, but it reduces system crashes. It also tends to be more expensive. The other components of the server, such as the processor and motherboard, must support ECC memory.

Registered Memory Puts Less Strain on CPU Memory Controller

There are two types of ECC server memory: unbuffered and registered. When using unbuffered memory, the CPU communicates directly with the data banks for faster performance. Registered memory has registers on each memory bank module. The CPU needs to communicate with the registers first, then the registers communicate with the DRAM. This process means that every instruction from the server requires at least one extra CPU cycle, resulting in slower performance. However, registered server memory puts less strain on the CPU's memory controller, and increases reliability, a useful choice in data centers and business settings. Registered memory works with the DDR, DDR2 and DDR3 modules of many server models. 

Load-reduced Dual Inline Memory Modules Reduce Electrical Loading on the Memory Bus

A load-reduced dual inline memory module (LRDIMM) is a type of server memory that reduces electrical loading on the memory bus. LRDIMMs have a memory buffer chip for each module that goes into the parallel memory bus. This way, they do not connect directly to the bus like other types of memory. When a server only has LRDIMMs as dynamic RAM, the memory controllers shift from parallel to serial mode, so the memory buffer handles all the read and write operations. Thanks to the reduced electrical load, LRDIMMs typically work faster than registered memory. 

Dynamic RAM Is Common as Main Memory

When considering desktop memory, there are two types of server RAM: static and dynamic. Static RAM (SRAM) has a more complex construction, with latches and transistors. Each block of memory requires six transistors. SRAM consumes less power than dynamic RAM (DRAM) and it is faster, but it is only available in smaller storage sizes. Since SRAM has a short access time, it is most common as cache memory. DRAM has a larger access time, so it is more common as the main memory. It is generally more expensive than SRAM. These factors also apply to laptop memory.

Bestselling Server Memory Reviews:

Matthew D.
7/29/2023 12:51:29 PM
Works with Ryzen Pro 4350G and Asrock B550 Mini-ITX

“ Highly recommended if you are building a home server on a Ryzen platform and need ECC ram that is compatible. ”

NEMIX RAM 32GB (2X16GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V 288-PIN ECC Unbuffered UDIMM KIT
Thomas
6/14/2022 1:17:58 PM
Works great in a consumer build

“ An advantage of this server memory is it works out of the box with the BIOS with no overclock profile required and runs at 1.2V. ”

Micron DDR4-3200 32GB/4Gx72 ECC CL22 Server Memory